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How to use JOIN FETCH?

; import java.io.File; import java.text.SimpleDateFormat; import java.util.Date; import java.util ... private long id;   private String name;   @OneToMany   @MapKeyTemporal(TemporalType.DATE)   private Map<Date,Address> addressHistory = new HashMap<Date,Address>();   public long getId
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Possible issue with String fields

; String external_booking_ref; @Temporal(javax.persistence.TemporalType.DATE) Date start_dt; @Temporal(javax.persistence.TemporalType.DATE) Date end_dt; @Temporal(javax.persistence.TemporalType.DATE) Date new_end_dt; String vehicle_group; String vehicle_identifier
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javax.persistence.TransactionRequiredException

information about the current state of the stack frames for the current thread. Returns: a reference
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getPersistenceProviderResolver()

Static Method javax.persistence.spi.PersistenceProviderResolverHolder PersistenceProviderResolver getPersistenceProviderResolver() Returns the current persistence provider resolver. Returns: the current persistence provider resolver Since: JPA 2.0
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javax.jdo.JDOObjectNotFoundException

about the current state of the stack frames for the current thread. Returns: a reference
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javax.jdo.JDOUnsupportedOptionException

. This method records within this Throwable object information about the current state of the stack frames for the current thread. Returns: a reference to this Throwable instance. Since: Java JDK1.0
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isDeleted(pc)

Static Method javax.jdo.JDOHelper boolean isDeleted( Object pc ) Tests whether the parameter instance has been deleted. Instances that have been deleted in the current transaction return true ... the current transaction. Since: JDO 1.0 See Also: PersistenceManager.deletePersistent(Object pc) PersistenceCapable.jdoIsDeleted()
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javax.jdo.JDOUserCallbackException

information about the current state of the stack frames for the current thread. Returns
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jdoIsDeleted()

Method javax.jdo.spi.PersistenceCapable boolean jdoIsDeleted() Tests whether this object has been deleted. Instances that have been deleted in the current transaction return true. Transient instances return false. Returns: true if this instance was deleted in the current transaction. Since: JDO 1.0
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jdoIsDirty()

Method javax.jdo.spi.PersistenceCapable boolean jdoIsDirty() Tests whether this object is dirty. Instances that have been modified, deleted, or newly made persistent in the current transaction return ... the current transaction. Since: JDO 1.0 See Also: javax.jdo.JDOHelper.isDirty(Object pc) javax.jdo

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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